fix: Version warning banner in docs

[saumeya]

Signed-off-by: saumeya saumeyakatyal@gmail.com
Closes #6624

Note on DCO:

If the DCO action in the integration test fails, one or more of your commits are not signed off. Please click on the Details link next to the DCO action for instructions on how to resolve this.

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• Optional. My organization is added to USERS.md.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).

[codecov]

Codecov Report

Merging #6682 (c2ca426) into master (f12650c) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head c2ca426 differs from pull request most recent head 17eb524. Consider uploading reports for the commit 17eb524 to get more accurate results

@@           Coverage Diff           @@
##           master    #6682   +/-   ##
=======================================
  Coverage   41.29%   41.30%           
=======================================
  Files         156      156           
  Lines       20688    20702   +14     
=======================================
+ Hits         8543     8550    +7     
- Misses      10937    10944    +7     
  Partials     1208     1208           

Impacted Files	Coverage Δ
cmd/argocd-util/commands/app.go	31.30% <0.00%> (-0.28%)	⬇️
cmd/argocd/commands/root.go	2.17% <0.00%> (-0.05%)	⬇️
cmd/argocd/commands/app.go	0.00% <0.00%> (ø)
cmd/util/app.go	36.87% <0.00%> (+1.05%)	⬆️

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[jannfis]

Thanks @saumeya! Can you please fix the DCO check by signing off your commits?

[saumeya]

Thanks @saumeya! Can you please fix the DCO check by signing off your commits?

Done

[jannfis]

LGTM, thank you @saumeya!

[jannfis]

Going to cherry-pick this change into release-1.8 and release-2.0 branches so looking at older docs will produce the same sticky banner. FYI @alexmt